Hit me with some lore

Please I'm begging you. It is the weirdest band on the planet. Who plays bass, who is a band member, how many albums do they have, how bw is still alive, how did they make an album like pet sounds and sunflower, why is there no definitive version of smile?

To quote Roger Daltrey: Keith was so obsessed with them that, even in the highest time of The Who's career, he would leave everything to join The Beach Boys.

To quote Dennis Wilson: The Beach Boys is Brian Wilson, period. He is everything. We are nothing.

To quote the movie "Rocketman": Goddamit Reggie, three of the beach boys are here in the venue.

And kudos to the greatest antagonist of rock history. Mr Love. Give me some lore y'all.